Three dimensional layout device



Dec. 25, 1962 F. s. scHlLx-:R

THREE DIMENSIONAL LAYOUT DEVICE 4 Sheets-Sheet l Filed March 24, 1958INVENTOR. FEEDER/CK .9. 5CH/LER MM grauw ATTORNEY Dec. 25, 1962 F. s.sci-ULER 3,069,778

THREE DIMENSIONAL LAYOUT DEVICE Filed March 24, 1958 4 Sheets-Sheet 2 6g666B 64 65 INVENTOR.

@65g F/PER/CK S. SCH/LER BY g y' /oa gum@ M 9/ '09 A TTORNEY Dec. 25,1962 F. s. scHlLER 3,059,778

THREE DIMENsIoNAL LAYOUT DEVICE Filed March 24. 1958 4 Sheets-Sheet 3FIG. 5

34a, 34 109 /04 lOa,

FIG. 7

INVENTOR. FREDERICK S. SCH/LER ATTORNEY Dec. 25, 1962 F. s. scHlLERTHREE DIMENsIoNAL LAYOUT DEVICE Filed March 24, 1958 4 Sheets-Sheet 4///7 6 WDM l w m w m o ww f 5 PIU BY fm ATTORNEY fitges Portag tion orio Filed Mar. 24, 953, Ser. No. 723,266 1b Claims. (Ci, 3ft-17d) rthisinvention relates to layout devices for marking locations on planarsurfaces and in particular, has reference to a new and improved type oflayout device that is capable of making the layout in the threedimensional planes of a solid object.

In the art of machining heavy casting for example, a foundry, or othersource, normally delivers the rough casting to the machine shop wherethe same is to be machined to final dimension. It has been theexperience of machine shop operators that castings of this general typeare often inaccurately cast, and due to such inaccuracy wi l not show upuntil after considerable time has been spent eifectuating preliminarymachining operations on the same.

To eliminate this, it has been tne practice in the past to layout thehole or other patterns on the rough casting to see if the same can beproperly machined. Normally, this is a time consuming effort, but it hasbeen found from a business stand-point that the same is in actuality acost savings7 since it eliminates unnecessary machiningy operationswhich would be considerably more expensive.

ln effectuating such preliminary layout prior to machining operations,the conventional practice to data has been to modify a conventionalheight gauge by attaching a scribing instrument thereto. ln this manner,the scribing instrument can be moved through a certain height plane,with the height of the scribing instrument being determined by thegraduation on the upright standard portion thereof. However, toeffectuate two dimensional markings on rough castings of this type, ithas always been necessary to turn the casting on the work surface and asa result, in the normal practice of checking castings in the mannerdescribed, it has been necessary to turn the piece several times duringthe layout operation. The disadvantages of such a procedure are believedmanifest.

As a still further disadvantage of the known prior art type of heightgauge, it has been further found that the coplanar abutment between thebase of the layout device and the surface table, oftentimes results insome inaccuracy, due to the presence of foreign particles thataccumulate on either one of the surfaces. Additionally, when the planarsurface of the base is merely permitted to slide across the planarsurface of the surface table, as is the case in conventional heightgauges, it is difficult, if not impossible to provide a straight-linetype of transverse marking on a horizontal surface of the work piece,with the result that the base of the height gauge must be made to slideagainst a straight edge attached to the top of the surface table inorder to achieve straight line transverse movement of the scribing toolthereof.

lt has been discovered that the aforementioned disadvantages can beeliminated by employing a more Versatile type of layout device that hasan elongate cross arm attached to the upright standard in verticallyshiftable relationship therewith. Additionally, it has been found thatif this cross arm is provided with graduations and made to be movablethrough a horizontal plane with respect to its point of connection onthe upright standard, that even further improved results will occur.This latter is true, especially if one or more scribing instruments areattached to the end of the cross arm so that a marking can be obtainedat a predetermined distance from the upright standard. in this manner, athree dimensional ,e il

layout work be conducted without the necessity of having to turn theWork piece in any Way.

lt has also been found that if the base member of the layout device isprovided with retractable wheels or guide elements that are selectivelyengagable Within transverse parallel grooves provided in the surfacetable, that transverse straight line markings can be eectuated on asurface of the work piece that is in parallel with. the surface table.

Accordingly, it is the principal object of this invention to provide animproved type of layout device that is characterized by the `fact thatthe same can mark or scribe indicia on three different dimensionalsurfaces of a rough piece of work supported on a surface table withoutthe necessity for changing the position of the work piece on the tableduring such marking.

It is a still further subject of this invention to provide an improvedtype of layout device designed for use with a surface table havingparallel grooves thereon, and which is characterized `by the fact thatthe same can effectuate transverse, straight line markings on thehorizontal surface of a work piece disposed on the surface table.

lt is a still further object of this invention to provide an improvedtype of layout device of the character above described, which iscompletely accurate in dimensional marking, and which can be used by theaverage skilled workman with a minimal amount of effort.

These and other objects of the invention will become more apparent upona reading of the following brief specification, considered andinterpreted in the light of the accompanying drawings.

Gf the drawings:

FGURE l is a perspective view of the improved layout device positionedon a surface table.

FIGURE 2 is a fragmentary front elevation View showing interconnectionbetween the standard and the cross arm.

FIGURES 2, 3, 4, 5, 6 and 7 are sectional views taken on the lines 2 2,3 3, 4 4, 5 5, 6 6 and 7 7.

FIGURE 8 is an elevation View partly broken away in section of the baseportion of the device.

FlGURE 9 is an elevational View, partly broken away and in sections andshows construction of one scribing member.

FIGURES 10 and 11 elevation views, partly broken away and in section, ofmodified forms of the invention.

FIGURE 12 is a perspective View of a further modification of theinvention.

Referring now to the drawings and in particular to FIGURE 1 thereof, theimproved layout device, generally indicated by the numeral itl, is shownpositioned on a surface table l1, so as to have scribing instruments l2and 13 swingable through elected planes upon relative movement between across bar lei and an upright standard l5; with standard i5 projectingupwardly from a base member i7 that is designed to be positioned on thework table lil as is clearly shown in FIGURE 1. ln this manner, a threedimensional layout can be achieved on a casting C received on a surfacetable il without the necessity for changing or moving the casing duringsuch layout operation.

Considering first the structure of the surface table lli, it will beseen from FlGURE 1 that the same includes a at planar surface 'it withinwhich are provided parallel grooves i9, t9 and Ztl, 2t? with each groove19 being preferable disposed at right angles to the grooves 2d, as isclearly shown in FIGURE l of the drawings. lt is to be understood inthis regard, that these grooves extend trausversedly of the surfacetable so as to connect the opposite sides of the same, with stops orother mediums 3 being placed at the ends of the grooves to preventoverrunning of the same by the layout device 1d.

Turning next to a consideration of the base member f7 and referringspecifically to FIGURES l and 8 of the drawings, it will be seen thatthe preferred embodiment of the invention illustrated herein, is ofT-shaped configuration in plan, so as to include a base portion 2l and ahead portion 22, with the head portion 2,2 preferable having projectingwheel member 23, 24 while at least one wheel member 28 projects beyondthe lowerrnost planar surface 25 of leg portion 21 as shown in 8. Theconstruction of the wheels 23 and 24 is preferable identical and itsuffices to say that the same are journaled within slots 26, 26 byrotatably mounting the axial end portions 27 thereof in appropriateundercut portions of base 17. In this manner, the base member 17 maymove across the planar surface 18 as a result of the contact of thewheel members 23 and 24 therewith. In addition to the wheel members justdescribed, the head portion 22 further includes auxiliary wheel members28, 28 that are respectively moved to the fully extended position ofFlGURE 8 upon operation of handles 29, 29 in known fashion. In thisregard, it is to be understood that two wheels 28, 28 are preferableprovided parallel to the top edge surface 22a of head 22, and in thismanner these wheels 2S, 2S may be positioned within either the groove 19or 2@ for rotational movement therein.

As shown in FIGURE 8, this retractable arrangement may be achieved byproviding the base with an opening 29a, Within `which member 291) mayshift, with wheels 28, 28 being rotatably attached to member 29b. Inthis manner a ball detent 29C can be positioned in eithe groove 29d or29e to selectively retain the device in extended or retracted condition.Y

In this fashion and as shown in FIGURE 10, the wheels 23, 23 projectfurther beyond the surface 25 than do the wheels 23 and 24, with thedifference in projection being equivalent to the depth dimension of theslots 19, 19 and 2t?, 2t). rThus, the wheels 23 and 24 may ride over thesurface of the table 1l, while the wheels 28, 23 ride in the slot toeffectuate guide movement of the base in a parallel condition.

Referring next to FIGURES l, 2 and 3, it will be seen that the uprightstandard 1t? is preferably illustrated as being of elongate, hollow,hexagonal configuration so as to project upwardiy from the base 17 atright angles therewith, with the usual graduations 3d being provided onone face 31 of the standard 15 in known manner.

Received around the upright standard 15 in relatively shiftablerelationship therewith, is an adaptor unit indicated generally by thenumeral 4t) and illustrated best in FIGURES 2 through 7 of the drawings.

Referring first to FIGURE 5, it will be seen that the overall adaptorunit 4t? includes an upper slide block 41, a lower slide block 42, amain clamping block 43 and a pair of auxiliary clamping blocks 44 and44a, the arrangement being such that the clamping block 43 is securedwith respect to the members 4-1 and 42 by screws 45a, 45a and 45, 45,while the auxiliary clamping blocks 44 and 44a are in turn, secured overthe clamping block 43 at axially spaced points by screw members 46, 46.in this manner, the members 41, 42 and 43 will coact together toencircle the upright standard 15 in shiftable relationship therewith,while the clamping blocks 43, 44 and 44a will in turn surround the crossbar 14, as is clearly shown in FIGURE 5.

Referring now to FiGURE 3 for a detailed consideration of the uppermember 41, it will be seen that the same is of generally U-shaped so asto be positionable in encircling relationship around the uprightstandard 15, with five sides of the member 15 being shown sur* roundedby component parts of the member 41. To the end of facilitating shiftingof the member 41, the same is shown provided with bores Sit and i, withthe bore 5d having liners 56a and 506, while similar liners Sib andaoc-)9,7713

5lb are disposed at axially separated points in the bore 51. In thismanner, shafts 52 and 53 can be received in bores Sil and 5irespectively, with the opposed ends of these shafts abutting against theliners, as is clearly shown in FEGURE 3 of the drawings. Enlargedportions 53a and 531:, provided centrall; of the shaft 53, facilitatesrolling Contact between the wall of the bore 51 and the external faceE551 of standard 15.

Similarly, with regard to the shaft 52, it will be seen that the same isencircled by axially spaced, resilient O- rings 55, 56, that engage wallsurface 15b of standard T5, as well as bore S'J, as is shown in FiGURE3. Also, and in order to facilitate external operation of shaft 52,extension 52a thereof connects at its projecting end with an externallylocated turning knob 57, and in this manner, the shaft 52 may be rotatedupon turning of knob S7.

It is to be understood in this regard, that a second set of bearingrollers, similar to the member 53, would be provided in the lower member42 for engagement, with the surfaces 15o and 15b of the standard 15 ataxially spaced points. In this manner, the roller 53 as well as therollers (not shown) of lower unit 42, would support the standard 15while actual driving of the same, to effectuate relative movement wouldbe accomplished by the resilient rings 55 and 56.

As has been previously indicated, the clamping block 43 is releasablyattached with respect to the members 4l and 42 by the use ofconventional bolt members 45a and 45, and accordingly, it will beunderstood that the mem- -bers 41, 42 and 43 completely encircle thestandard 1S, as is shown in FIGURE 3. To the end of providing a thirdpoint of roller support against the standard l5, the graduated face 31thereof, is shown engaged by a roller mem-ber 60, with the roller memberbeing disposed medianely of an elongate shaft 61, the opposed ends ofwhich are journaled in slots 62 and 63, with these slot members 62 and63 being interconnected by an enlarged opening 64 within which theroller 6b can rotate.

To the end of adjusting the degree of tension betweenthe standard 15 andthe previously described roll-er members 52 and 53, the clamping block43 is further provided with tapped apertures 65, 65 within which setscrews `66, 66, can be received to bear against the opposed axial endsof shaft 61 to accordingly regulate the clamping pressure as desired. Alocking nut 68, having a handle 69, is rotatable so that its end 68a,will bear against the face 31 of the standard, so as to lock the entireunit 40 in any given position on the standard 15.

In addition to the aforementioned component parts, the upper surface 7d(FIGURE 2) of the clamping 'block 43 includes a projecting pin 71 aswell as a threaded member 72, with the threaded member 72 beingthreadingly received in an appropriate aperture of block 43 and having aturning knob 73 for purposes to be described. In this fashion, a Vernierscale 74, can be journaled around post members 71 and J72 so that uponoperation of knob 73, the indicating portion 74a thereof will be movedrelatively of the indicia 30 that are provided on scale 31, even thoughthe adaptor unit d@ is locked in place on shaft 15.

For the purpose of cooperatively receiving the cross arm 14 inrelatively shiftable relationship therewith, the lower front surface 43aof the clamping block 43 is shown provided with an undercut groove thatis indicated generally by the numeral '75. A gauge plate 76 having aslot 77 and a Vernier scale portion 78, is adjustably associated withthe lower portion of the block 43 by the screw member 79; thearrangement being such that upon loosening of the screw 79, the Vernierscale 7S can be shifted rela-l tively of the cross arm 14- even thoughthe same is lockedv in place with respect to the member 43 by meansherein-- after to be described.

Turning next to FIGURES 5, 6 and 7, for a consideration of the manner inwhich the cross bar 14 is carried by the member 43 in relativelyshiftable relationship therewith, it has been previously noted that 'theauxiliary clamp` member dit has been shown as being of a split type ofarrangement so as to facilitate encirclement of the upright standard l5,it is to be understood that one piece type of casting could be employed,if desired, under production conditions.

Referring next to FIGURE l() of the drawings, it will be seen that themodiiied form of the invention illustrated therein envisions themovement of the mounting socket for the scriber i2 around the axis ofrotation of the cross arm Elli. Accordingly, the outboard end of t e armM is shown provided with a blind bore i3d within which can be receivedan extension 313i of an adapter socket 132, with this adapter socketcarrying both biock M6 and scriber 12 as is clearly indicated in FGUREl0.

To the end of facilitating rotational movement between 90 degreepositions, the extension 131 is provided with depressions 13d and 35.With these depressions being 90 degrees to each other so as to beselectively engaged by a spring-loaded ball i135. In this manner, thescriber 13 can be made to move through a horizontal and vertical arcdepending upon whether the ball 136 is received in depression 13d or13S.

The modified form of the invention shown in FI"- URE ll is simiiar tothat previousiy discussed in connection with FGURE l0, and accordingly,where indicated, like numerals wiil indicate like-parts.

In this modified form of the invention, however, it is contemplated thatthe adapter member E32 be moditied so as to permit the use of anauxiliary scribing instrument ldd which may be rotated around the axisof rotation of member i@ and extension 31.

Accordingly, in this modification, the member BZ is shown provided witha crosssbore lidi within which may be received a graduated standardifi-f2. With this stand ard i4?. being retained in place with respect tomember 132 by a set screw 14?'. in this manner, the outboard end Mila ofstandard M2 may be apertured to receive the marking tool lll-iti, withthe marking tool M@ being retained in place with respect to standard 142by a conventional turning knob M5. it will be seen in this manner thatthe scribing instrument iti@ can thus be adjusted to generate a circleof any given diameter around the axis of rotation of the extension idf.

The modification of FIGURE l2 is designed to adapt the unit for obliquemovement on table il, and accordingly, it will be noted that thismodification contemplates the use of an adapter biock that is indicatedgenerally by the numeral 151i, and which has a plurality of dependinglegs 152i, fel that will rest upon the surface table 11. In this manner,with the device l5@ received on the table fri, the layout device can bereceived on the planer surface 152 thereof as is ciearly shown in FIGUREl2 of the drawing, with slot iSS facilitating movement of the layoutmember it) relatively of the adaptor member 15d.

Since the modification of FIGURE i2 contemplates the transverse markingat an acute angle with respect to any given edge of table i1, the member150 further includes a cylindrical plate idd, that is provided withgraduations 15S, while also being mounted for rotation around the member150 in known manner. Additionally, the member 154` has its lower (FIGUREi2) face provided with a rib 156, with this rib being designed to bereceived either in the groove i9 or Zit of table il.

In this manner, when the rib 15d is positioned within either groove, 19or 2G, the entire unit i5@ can be rotated relatively of table il andcylindrical plate i565 until the desired angle between these parts isobtained with this angle being determined, by matching the propergraduation 5155' With marking line 153 that is provided on the memberlit?. When this positon has been reached, movement of the member itirelatively of slot 153 will cause the layout tooi to move obliquely ofthe surface table li at the proper angle selected.

In the preceding forms of the invention disclosed, the

layout device has been illustrated as being utilized with a table havingappropriate slots provided on the work surface thereof for receivingcomplemental parts of the layout device. it is to be understood that theinvention is in no sense limited to use on such type of tabie, and thatif an ordinary surface table were employed, the same could be utilizedwith the improved layout tool by merely reieasably ciamping guide railsover the work surface thereof.

Also, in this regard and with particular reference to FGURE ii, it is tobe understood that the base could be equipped with a magnetic or otherholding `device that would temporarily tix the same immovably on thework surface so that the scriber i5@ could be accurately rotated aboutits axis.

ther modifications of the invention may be resorted to without departingfrom the spirit hereof or the scope of appended claims.

What is ciaimed is:

l. A layout device for use on a surface table having straight elongateguide surfaces, comprising; a base slidably supported on said surfacetable and having a planar surface disposed in substantial parallelismwith said surface table when said base is slidably supported thereon;guide means carried by said base and being releasably eugageable withsaid eongate guide surfaces of said surface table, whereby said base maybe moved across said table in a straight line path of movement; anupright standard carried by and projecting from said base at rightangles to said planar surface thereof with said standard having alongitudinal axis; a mounting bracket carried on said standard inlongitudinally shiftable relationship therewith; an elongate cross armcarried by said bracket in iongitu-dinally shiftable relationshiptherewith and having a longitudinal axis that is disposed at rightangles to said longitudinal axis of said standard; whereby said crossarm is maintained at right angles to said standard during movement ofsaid bracket relatively of said cross arm and said standard; andscribing means carried by said cross arm and adapted to define height,width and depth dimensions with respect to an object supported on saidsurface table; said bracket being fixed against relative rotation aroundthe longitudinal axis of said standard and said cross arrn; said basebeing held against rotation with respect to said guide means duringengagement therebetween, whereby said longitudinal axis of said crossarm is at right angles to said straight line path of movement of saidbase.

2. The device of claim l further characterized by the fact that saidscribing means are movably mounted on said cross arm so as to be movablerelativciy of said cross arm through a plane that is at right angles tosaid cross arm.

3. The device of claim l further characterized by the fact that saidscribing means may be adjustably shifted along the longitudinal axis ofsaid cross arm.

4. The device of claim l further characterized by the fact that saidscribing means include an elongate scribing element pivoted at one endto an axial end of said cross arm and being swingable through a pianethat is normal to said planar surface of said base.

5. The device of claim l further characterized by the fact that saidscribing means include an elongate scribing element pivoted at one endto an axial end of said cross arm and being swingable through a planethat is parailel to said planar surface of said base.

6. The device of claim l further characterized by the fact that saidscribing means include an adaptor socket carried by one axial end ofsaid cross arm in longitudinally concentric telescoped relationshiptherewith; an elongate scribing element pivoted at one elongate endthereof to the projecting end of said socket; indexing means adapted topermit rotation of said socket with respect to said cross arm wherebysaid scribing element can be selectively pivoted through right angleplanes of movement.

7. The device of claim 1 further characterized by the fact that saidscribing means include an adaptor socket carried by one axial end of scross arm in longitudinally concentric telescoped relationshiptherewith; said socket having a transverse opening passing through theaxis thereof that is concentric to the longitudinal axis of said crossarm; an elongate scriber supporting arm received in said transverseopening and projecting radially of said cross arm; a scribing elementcarried by a projecting end of said scriber supporting arm and beingdisposed at right angles thereto whereby the same may be disposed inparallel to the longitudinal axis of said cross arm of a radially spaceddistance therefrom; indexing means adapted to permit rotation of saidsocket with respect to said cross arm whereby said scribing element canbe circularly rotated around the longitudinal axis of said cross arm.

S. The device of claim 7 further characterized by the fact that saidscriber supporting arm is adjustable longitudinally in said transverseopening whereby the diameter of circle scribed by said scribing elementcan be varied.

9. The device of claim 8 further characterized by the presence of meansfor measuring the amount of shifting of said scriber supporting armrelatively of said transverse openings.

l0. rille device of claim l further characterized by the fact that saidscribing means include 'first and second scribing elements; said iirstscribing element being movable relatively of said cross arm through aplane that is at right angle to said cross arm; said second scribingelement being elongate and being pivoted to one end of said cross arm.

ll. The device of claim l further characterized by the presence of meansfor shifting said second scribing element around the longitudinal axisof said cross arm whereby the plane of pivotal movement thereof may bevaried between horizontal and vertical planes of pivotal movement.

l2. A layout device for use on a surface table having first and secondsets of parallel straight elongate guide surfaces that are arranged atright angles to each other, comprising; a base slidably supported onsaid surface table and having a planar surface disposed in substantialparallelism with said surface table when said base is slidably supportedthereon; guide means carried by said base and releasably engageable withany of said elongfte guide surfaces of said rst and second sets wherebysaid base may be moved across said base in at least two straight linepaths of movement; an upright standard carried by and projecting fromsaid base at right angles to said planar surface thereof with saidstandard having a longitudinal axis; a mounting bracket carried on saidstandard in longitudinally shiftable relationship therewith; au elongatecross arm carried by said bracket in longitudinally shiftablerelationship therewith and having a longitudinal axis that is disposedat right angles to said longitudinal axis of said standard; whereby saidcross arm is maintained at right angles to said standard during movementof said bracket relatively of said cross arm and said standard; andscribing means carried by said cross arm and adapted to define height,width and depth dimensions with respect to an object supported on saidsurface table; said bracket being xed against relative rotation aroundthe longitudinal axis of said standard and said cross arm; said basebeing held against rotation with respect to said guide means duringengagement therebetween, whereby said longiltudinal axis of said crossarm is at right angles to at least one said straight line path ofmovement of said base.

13. A layout device for use on a surface table having straight elongateguide surfaces, comprising; a base slidably supported on said surfacetable and having a planar surface disposed in substantial parallelismwith said surface table when said base is slidably supported thereon;guide means carried by said base and being releasably engageable withsaid elongate guide surfaces of said surface table; whereby said basemay be moved across said table in a straifht line path of movement; anupright standard carried by and projecting from said base at rightangles to said planar surface thereof with said standard having alongitudinal axis; a mounting bracket carried on said standard inlongitudinally shiftable relationship therewith; an elongate cross armcarried by said bracket in longitudinally shiftable relationshiptherewith and having a longitudinal axis that is disposed at rightangles to said longitudinal axis of said standard; whereby said crossarm is maintained at right angles to said standard during movement saidbracket relatively of said cross arm and said standard; scribing meanscarried by said cross arm and adapted to define height, width and depthdimensions with respect to an object supported on said surface table;said bracket being fixed against relative rotation around thelongitudinal axis of said standard and said cross arm; said base beingheld against rotation with respect to said guide means during engagementtherebetween, whereby said longitudinal axis of said cross arm is atright angles to said straight line path of movement of said base; androller means supporting said base with respect to said surface table;said elongate guide surfaces being slots; said guide means beingretractable rollers that are received in said slots when the same are inextended position.

i4. A layout device for use on a surface table having straight elongateguide surfaces, comprising; a base slidably supported on said surfacetable and having a planar surface disposed in substantial parallelismwith said surface table when said base is slidably supported thereon;guide means carried by said base and being releasably engageable withsaid elongate guide surfaces of said surface table, whereby said basemay be moved across said table in a straight line path of movement; anupright standard carried by and projecting from said base at rightangles to said planar surface thereof with said standard having alongitudinal axis; a mounting bracket carried on said standard inlongitudinally shiftable relationship there with; and elongate cross armcarried by said bracket in longitudinally shiftable relationshiptherewith and having a longitudinal axis that is disposed at rightangles to said longitudinal axis of said standard; whereby said crossarm is maintained at right angles to said standard during movenient ofsaid bracket relatively of said cross arm and said standard; scribingmeans carried by said cross arm and adapted to deline height, width anddepth dimensions with respect to an object supported on said surfacetable; said bracket being fixed against relative rotation around thelongitudinal axis of said standard and said cross arm; said base beingheld against rotation with respect to said guide means during engagementtherebetween, whereby said longitudinal axis of said cross arm is atright angles to said straight line path of movement of said base; rstdrive means shifting said bracket relatively of said standard; seconddrive means shifting said cross arm relatively of said bracket.

l5. A layout device for use on a surface table having strain-ht elongateguide surfaces, comprising; a base slidably supported on said surfacetable and having a planar surface disposed in substantial parallelismwith said surface table when said base is slidably supported thereon;guide means carried by said `base and being releasably engageble withsaid elongate guide surfaces of said surface table, whereby said basemay be moved across said table in a straight line path of movement; anupright standard carried by and projecting from said base at rightangles to said planar surface thereof with said standard having alongitudinal axis; a mounting bracket carried on said standard inlongitudinally shiftable relationship therewith; an elongate cross armcarried by said bracket in longitudinally shiftable relationshiptherewith and having a longitudinal axis that is disposed at rightangles to said longitudinal of said standard; whereby said cross arm ismaintained at right angles to said standard during movement of saidbracket relatively of said cross arm and said spent/'as standard; andscribing means carried by said cross arm and adapted to denne height,width and depth dimensions with espect to an object supported on saidsurface table; said bracket being fixed against relative rotation aroundthe longitudinal axis ot said standard and said cross arm; said basebeing held against rotation with respect to said guide means duringengagement therebetween, whereby said longitudinal axis of said crossarm is at right angles to said straight line path of movement of saidbase; said standard being rotatable relatively of said straight elongateguide surfaces around its longitudinal axis.

16. The device of claim 15 further characterized by the presence ofmeans for measuring the amount of rotation of said standard relativelyof said base.

17. A layout device for use on a surface table having straight elongateguide surfaces, comprising; a base slidably supported on said surfacetable and having a planar surface disposed in substantial parallelismwith said surface table when said base is slidably supported thereon;guide means carried by said base and being releasably engageble withsaid elongate guide surfaces of said surface table, whereby said basemay be moved across said table in a straight line path of movement; anupright standard iixed to and projecting from said base at right anglesto said planar surface thereof with said standard having a longitudinalaxis; a mounting racket carried on said standard in longitudinallyshiftable relationship therewith; an elongate cross arm carried by saidbracket in longitudinally shiitabie relationship therewith and having alongitudinal axis that is disposed at right angles to said longitudinalaxis of said standard; whereby said cross arm is maintained at rightangles to said standard during movement of said bracket relatively ofsaid cross arm and said standard; scribing means carried by said crossarm and adapted to define height, width and depth dimensions withrespect to an object supported on said surface table; said bracket beingfixed against relative rotation around the longitudinal axis of saidstandard and said cross arm; said longitudinal axis of said cross armbeing at right angles to said straight line path of movement of saidbase; iirst and second measuring indicia adapted to respectively measurerelative movement of said bracket with respect to said cross arm andsaid standard.

18. A layout device of the character described, comprising; a tablehaving straight elongate guide surfaces; a base slidably supported onsaid surface table and having a planar surface disposed in substantialparallelism with said surface table when said base is slidably supportedthereon; guide means carried by said base and being releasablyengageable with said elongate guide surfaces of said surface table,whereby said base may be moved across said table in a straight line pathof movement; an upright standard ixed to and projecting rom said base atrioht angles to said planar surface thereof with said standard having alongitudinal axis; a mounting bracket carried on said standard inlongitudinally shittable relationship therewith; an elongate cross armcarried by said bracket in longitudinally shiftable relationshiptherewith and having a longitudinal axis that is disposed at rightangles to said longitudinal axis of said standard; whereby' said crossarm is maintained at right angles to said standard during movement ofsaid bracket relatively or said cross arm and said standard; andscribing means carried by said cross arm and adapted to deline height,width and depth dimensions with respect to an object supported on saidsurface table; said bracket being iixed against relative rotation aroundthe longitudinal axis of said standard and said cross arm; saidlongitudinal axis of said cross arrn being at right angles to saidstraight line path of movement of said base.

References Cited in e le of this patent UNITED SATES PA LENTE 359,336Walker Mar. 15, 1887 491,845 Field Feb. 14, 1893 556,703 Starrett Mar.17, 1896 1,l34,l{}6 Clark Apr. 6, 1915 1,295,936 Spellrnan Mar. 4, 19191,743,024 Clark lan. 7, 1930 2,325,558 Uslan July 27, 1943 2,329,635McGall Q-ept. 14, 1943 2,337,144 Young Dec. 21, 1943 2,394,137 BarlowFeb. 5, 1946 2,540,738 Kaplowitz Feb. 6, 1951 2,541,535 Neil Feb. 13,1951 2,564,376 Schwartz Aug. 14, 1.951 2,594,457 Kunzler Apr. 29, 19522,670,542 Hull Mar. 2, 1954 2,676,413 Warton Apr. 27, 1954 2,771,683Kirchhof Nov. 27, 1956 FOREIGN PATENTS 83,068 Switzerland Apr. 1, 1920535,838 England Apr. 23, 1941 961,497 France May 12, 1950 OTHERREFERENCES Brown 8c Sharpe Catalogue #30, pp. 161-16-2, pub. 1926, Brown& Sharpe Mfg. Co., Providence, Rl. (Copy in Div. 66.)

